| Fiscal period | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
| Period End Date | 1/31/2025 | 1/31/2024 | 1/31/2023 | 1/31/2022 | 1/31/2021 | 1/31/2020 | 1/31/2019 | 1/31/2018 | 1/31/2017 | 1/31/2016 |
| Net sales and revenue | 642.49 | 833.38 | 855.00 | 774.80 | 372.85 | 418.03 | 486.67 | 452.59 | 453.80 | 436.49 |
| Total Revenues | 642.49 | 833.38 | 855.00 | 774.80 | 372.85 | 418.03 | 486.67 | 452.59 | 453.80 | 436.49 |
| Cost of sales (excluding retail segment depreciation) | 551.01 | 735.17 | 800.27 | 677.24 | 358.99 | 405.55 | 456.46 | 408.43 | 382.76 | 385.65 |
| Gross Profit | 91.48 | 98.22 | 54.73 | 97.56 | 13.86 | 12.49 | 30.22 | 44.16 | 71.04 | 50.83 |
| Selling, general and administrative expenses | 27.15 | 29.38 | 28.96 | 28.48 | 17.66 | 19.26 | 20.55 | 24.06 | 21.39 | 19.81 |
| Interest expense | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0.00 |
| Impairment charges and loss on deconsolidation | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Gain on sale of real estate | -- | -- | -- | -- | -- | -- | -- | (0.19) | 0.33 | 0.50 |
| Gain on sale of investment | -- | -- | -- | -- | -- | -- | -- | (0.01) | 0.19 | 10.39 |
| Realized investment gains | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income from synthetic fuel investments | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Equity in income of unconsolidated ethanol affiliates | 9.39 | 13.92 | 8.75 | 6.62 | 0.50 | 1.39 | 1.54 | 3.23 | 6.14 | 8.98 |
| Interest income | 19.16 | 15.72 | 12.96 | 0.13 | 1.82 | 4.21 | 3.39 | 2.27 | 0.60 | 0.63 |
| Other income (loss) | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Losses on derivative financial instruments | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Loss on early termination of debt | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Bargain purchase gain, net | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| (Loss) income from continuing operations before income taxes and minority interest | 92.87 | 98.48 | 47.48 | 75.84 | (1.48) | (1.17) | 14.59 | 25.39 | 56.91 | 51.52 |
| Federal: Current | 4.23 | 4.58 | 4.49 | 4.45 | 0.45 | 0.75 | 0.08 | (2.09) | 12.20 | 15.80 |
| Federal: Deferred | 13.52 | 14.10 | 2.93 | 12.06 | (7.33) | (10.78) | (23.55) | (19.53) | 3.57 | (2.87) |
| Provision (Benefit ) for Income Taxes | 21.39 | 22.56 | 9.54 | 19.03 | (7.10) | (12.81) | (22.92) | (19.52) | 17.39 | 14.11 |
| State and local: Current | 2.95 | 3.38 | 4.17 | 3.10 | 0.40 | (2.50) | 0.36 | 1.18 | 2.15 | 2.65 |
| State and local: Deferred | 0.69 | 0.50 | (2.04) | (0.58) | (0.62) | (0.29) | 0.18 | 0.92 | (0.53) | (1.48) |
| Extraordinary loss on Debt extinguishment | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Minority interest in loss of consolidated subsidiaries | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Income (Loss) from continuing operations | -- | 75.92 | 37.94 | 56.81 | -- | -- | -- | -- | 39.52 | 37.41 |
| Income (loss) from discontinued operations, net of tax | -- | -- | -- | 4.79 | -- | -- | -- | -- | -- | 0.00 |
| Gain on disposal of discontinued operations, net of tax | -- | -- | -- | -- | -- | -- | -- | -- | -- | 0.00 |
| Income before extraordinary item | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| EXTRAORDINARY LOSS FROM EARLY EXTINGUISHMENT OF DEBT, NET OF TAX | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net income (loss) including noncontrolling interests | 71.49 | 75.92 | 37.94 | 61.60 | 5.62 | 11.64 | 37.51 | 44.91 | 39.52 | 37.41 |
| Net (income) loss attributable to noncontrolling interests | 13.32 | 14.99 | 10.24 | 9.24 | 2.62 | 4.22 | 5.87 | 5.21 | 7.19 | 5.97 |
| Net Income (loss) Available to Common Shareholders | 58.17 | 60.94 | 27.70 | 52.36 | 3.00 | 7.43 | 31.65 | 39.71 | 32.33 | 31.44 |
| Basic (loss) income per share from continuing operations | -- | 1.75 | 0.79 | 1.33 | -- | -- | -- | -- | 0.82 | 0.72 |
| Basic loss per share from discontinued operations | -- | -- | -- | 0.13 | -- | -- | -- | -- | -- | 0.00 |
| Basic gain per share on disposal of discontinued operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings Per Share (Basic) - Extras | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Basic) | 1.65 | 1.75 | 0.79 | 1.46 | 0.08 | 0.20 | 0.82 | 1.00 | 0.82 | 0.72 |
| Diluted income per share from continuing operations | -- | 1.74 | 0.79 | 1.33 | -- | -- | -- | -- | 0.82 | 0.72 |
| Diluted (loss) income per share from discontinued operations | -- | -- | -- | 0.13 | -- | -- | -- | -- | -- | 0.00 |
| Diluted gain per share on disposal of discontinued operations | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Earnings Per Share (Diluted) - Extras | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Net Earnings Per Share (Diluted) | 1.65 | 1.74 | 0.79 | 1.46 | 0.08 | 0.20 | 0.82 | 1.00 | 0.82 | 0.72 |
| Weighted Average Shares Outstanding (Basic) | 35.27 | 34.96 | 35.28 | 35.89 | 37.00 | 37.91 | 38.64 | 39.58 | 39.52 | 43.78 |
| Weighted Average Shares Outstanding (Diluted) | 35.27 | 35.15 | 35.28 | 35.89 | 37.00 | 37.91 | 38.64 | 39.58 | 39.52 | 43.84 |